HashPass - Password Manager Tutorial

This tutorial will guide you through building a simple password manager in Rust.

Prerequisites

• Rust installed on your system
• Basic knowledge of Rust programming
• Cargo package manager

Step 1: Project Setup

1. Create a new Rust project:

cargo new hashpass
cd hashpass

2. Add the following dependencies to your Cargo.toml:

[dependencies]
clap = { version = "4.4", features = ["derive"] }
bcrypt = "0.15"
thiserror = "1.0"

3. Create the basic project structure:
   • src/lib.rs: Core password hashing functionality
   • src/main.rs: CLI interface

Step 2: Core Functionality

The core functionality is implemented in lib.rs with two main functions:

• hash_password: Takes a password string and number of rounds, returns a hashed password
• verify_password: Verifies a password against a hash

Example usage:

use hashpass::{hash_password, verify_password};

// Hash a password
let hashed = hash_password("mypassword", 12)?;

// Verify the password
let is_valid = verify_password("mypassword", &hashed)?;

Step 3: CLI Interface

The project includes a command-line interface for:

• Hashing passwords
• Verifying passwords against existing hashes

Usage examples will be covered in the following sections...